// Provides handlers for the buttons!

document.addEventListener("turbolinks:load", setup_handlers);

// Add the presence handler to all buttons on the page
function setup_handlers()
{
  $('.btn-presence').on("click", change_presence);
  $('.editable').editable();
}

// Callback that is triggered when a presence button is clicked.
// Creates an AJAX-request and registers the appropriate handlers once it is done.
function change_presence(e)
{
    // Gather data
    var group, person, activity, state;
    group    = this.dataset["groupId"];
    person   = this.dataset["personId"];
    activity = this.dataset["activityId"];
    rstate   = this.dataset["newState"];

    var state;
    switch (rstate)
    {
        case "present":
            state = true;
            break;

        case "absent":
            state = false;
            break;

        case "unknown":
            state = null;
            break;
    }

    // Make request
    var req;
    req = $.ajax(`/groups/${group}/activities/${activity}/presence`,
        {
          method: 'PUT',
          data: {person_id: person, attending: state},
          statusCode: {
            423: function() {
                alert( "De deadline is al verstreken! Vraag orgi of bestuur of het nog kan.");
            },
            403: function() {
                alert( "Je hebt geen rechten om iemand anders aan te passen!");
            }
          }
        }
    )
    .done( activity_changed );

    // Pack data for success
    req.aardbei_activity_data =
        {
            group: group,
            person: person,
            activity: activity,
            state: state
        };
}

// Update all references on the page to this activity:
// 1. The activity's row-color in any tables
// 2. The present/absent buttons
function activity_changed(data, textStatus, xhr)
{
    // Unpack activity-data
    var target;
    target = xhr.aardbei_activity_data;

    // Determine what color and icons we're going to use
    var new_rowclass;
    var new_confirm_icon, new_decline_icon;
    switch (target.state)
    {
        case true:
            new_rowclass = "success";
            new_confirm_icon = check_selected;
            new_decline_icon = times_unselected;
            break;

        case false:
            new_rowclass = "danger";
            new_confirm_icon = check_unselected;
            new_decline_icon = times_selected;
            break;

        case null:
            new_rowclass = "warning";
            new_confirm_icon = check_unselected;
            new_decline_icon = times_unselected;
            break;
    }

    // Update all tr's containing this person's presence
    $(`tr[data-person-id=${target.person}][data-activity-id=${target.activity}]`)
      .removeClass('success danger warning')
      .addClass(new_rowclass);

    // Update all buttons for this person's presence
    $(`.btn-present[data-person-id=${target.person}][data-activity-id=${target.activity}]`)
      .html(new_confirm_icon);
    $(`.btn-absent[data-person-id=${target.person}][data-activity-id=${target.activity}]`)
      .html(new_decline_icon);

    // Add text to all 'wide' buttons
    $(`.btn-present[data-person-id=${target.person}][data-activity-id=${target.activity}][data-wide=1]`)
      .append(" Present");
    $(`.btn-absent[data-person-id=${target.person}][data-activity-id=${target.activity}][data-wide=1]`)
      .append(" Absent");

    if (window.updatecounts != undefined)
        updatecounts(window.subgroupfilter);
}

function alert_failure(data, textStatus, xhr)
{
    alert(`Something broke! We got a ${textStatus}, (${data}).`);
}

var check_unselected = '<i class="fa fa-check"></i>';
var check_selected = '<i class="fa fa-check-circle"></i>';
var times_unselected = '<i class="fa fa-times"></i>';
var times_selected = '<i class="fa fa-times-circle"></i>';